Joint for crossing bars



E. BOGERT.

JOINT FOR CROSSING BARS.

APPLICATION FILED Jun 31,1920.

Patentafl June 1139 M22:

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M INVENTOR.

A TTORNEYS r. ar t Q E iF o EUGENE BOGERT, F BIDGEWDOD, NEW JERSEY.

JOINT FDR CROSSING- BARS.

To all whom it may concern Be it known that i EUGENE BOGHRT, a citizen of the Unitet States, residing at Eidgewood, in the county of Bergen and State of New Jersey, have invented certain new and useful improvements in Joints for Crossing Bars, of which the following is a specification. I

The present invention relates to jolnts tor crossing bars, particularly such as are adapt ed for metal sash construction, and coinprises a joint which is simple to 1nanufa c ture and which at the same time is rigid in construction.

In the drawings, Figure 1 is a side eleva. tion and Fig. 2 an end elevation of one of the bars as it will be cut in the preferred form of my invention, only such a portion of a bar as is sufficient to form a joint being shown; Figs. 3 and 4: are, respectively, end and side elevations of the second bar as it will be cut to form the preferred form of my invention; Figs. 5 and 6 are, respec tively, side elevations of my preferred form r of joint as it will appear when completed;

Fig. 7 is a plan view of Fig. 5 and Fig. 8 is an enlarged section of Fig. 7 on the line 8, 8. Corresponding parts have corresponding reference characters in the several views.

In the preferred form of my invention, I use T-bars with a rib along either edge of the flange parallel to the web of the bar, although such form of bar is not essential. The first bar 10 has its flange cut away as at 11, and also has a slot 12 cut into its web. Preferably, also, there is a depression 13 formed at the top of the web for a purpose to be described hereinafter.

The second bar 14 has aslot 15 cut in, the upper portion of its web. Then the bars 10 and 14 are assembled to form the joint by moving the bar it upwardly, as shown in the drawings, until it occupies the position shown in Figs. 5 and 6 with the bottom of its flange in the same plane as the bottom of the flange of the bar 10. The slot 12 will be long enough to accommodate the portion of the web of the bar 1st, which extends below the slot 15, and the slot 15 will accommodate the portion of the web of the bar 10 above the slot 12. In my preferred form, the two bars are alike in cross section, so that the depression 13 is slightly below the level of the top of the web of the bar 1 1.

The joint as thus assembled is rigid so far as any motion in a plane parallel to the Specification of Letters Patent. Patgqgnted June 113, 1922,

1920. Serial no. 400,340.

plane of the bottoms of the flanges is concerned, but some means must be provided to prevent the bars from being withdrawn in the direction opposite to that in which they moved when being assembled. To this end, I prefer to form integral lips on one of the bars engaging over a surface on the other, and in the form shown, as best illustrated in Figure 7, I have provided a plurality of such lips, some of which engage with the top of the flange and some with the top of the rib. The lip-s engaging the flange may be formed conveniently by flattening that portion of the rib on the bar 14 which lies between the web and the rib on the bar 10, such flattening being shown in Fig. 7 at 16, 16. In Figure 8 this lip is shown in enlarged form, though it will be understood that as made in practice it will be somewhat more crudely formed. If desired, less than the four lips 16 may be provided, though the best efiect will be maintained with that number.

As a. further means for preventing the withdrawal of the members from the joint, I form a lip or lips 17 on the top of the web of the bar 14 extending over the web of the bar 10 into the depression 13. These also will be formed by any suitable tool which will bend over the edges of the web 14 adj acent the top of the web of the bar 10. If desired, the lips: at the tops of the web may be omitted.

While I have shown my joint in its preferred form as being made up of ribbed bars, it will be clear to those skilled in theiaitthat the joint may be made with a pair of ordinary T-bars without the ribs, though such a joint is not so satisfactory, because of the decrease in the contacting surface between the sides of the flanges of the two bars. The joint may also be made with the bar 10 plain or without the ribs along its flanges, while the bar 14 is provided with such ribs, such ribs constituting a ready means for forming the lips 16. It will also be obvious that the heights of the webs may be difierent in the two bars, and if the height of the web of the bar let is greater than that of the web of the bar 10, then the depression 13 will not be. required.

1. A joint comprising a pair of intersecti g T-bars, each having a rib on either edge of its tlan 'e extending parallel with the web of the bar, the flange of the first bar having an opening adapted to receive the flange of the second bar and the web of. the first bar having a slot extending from said opening toward the top of the web and adapted to receive a portion of the web of the second bar, and the web of the second bar having a slot extending from its top and adapted to receive a portion of the web of the first bar, the web of one of the bars having a depression at its top opposite the web of the other bar and the web of said other bar having an integral lip xtending into said depression, the webs 01" the second bar having integral lips extending over the web of the first bar. 2. A joint comprising a pair oi intersecting 'iT-bars, each having a rib on either edge of its flange extending parallel with the Web of the bar, said bars having slots extending from the tops and bottoms thereof, respectively, and adapted to permit said bars to be brought into intersecting relation with the bottoms of the flanges in the same plane, by a relative motion in a direction parallel to the plane of the webs, one or said flanges having integral. lips extending over the other flange.

8. A joint comprising a pair of intersecting T-bars, each having a rib on either edge of its flange extending parallel with the web of the bar, said bars having slots extending from the tops and bottoms thereof, respectively, and adapted to permit said bars to be brought into intersecting relation with the bottoms of th flanges in the same plane, by a relative motion in a direction parallel to the plane of the webs, one oi said flanges having integral lips extending over the other flange, and one of said webs having an integral lip extending over the other web.

4.. A joint comprising a pair of intersecting T-bars, one of said bars having a rib on either edge of its flange extending parallel with the web ot the bar, said bars having slots extending from the tops and bottoms thereof, respectively, and adapted to permit said bars to be brought into intersecting relation with the bottom of the flanges in the nine plane, by a relative motion in a direction parallel to the plane of the webs, the ribbed flange having integral lips extending over the other flange.

5. A joint comprising a pair of intersecting T-bars, one of said bars having a rib on either edge of its flange extending parallel with the web of the bar, said bars having slots extending from the tops and bottoms thereof, respectively, and adapted to permit said bars to be brought into intersecting re lation with the bottom of the flanges in the same plane, by a relative motion in. a direction parallel to the plane of the webs, the ribbed flange having its rib flattened opposite the other flange and extending over the other flange. I

6. A joint comprising a pair of intersecting it-bars, said bars having slots extending from the top and bottom thereof, respectively, and adapted to permit said bars to be brought into intersecting relation with the bottoms of said flanges in the same plane, one oil said flanges having an integral lip extending over the other of said flanges.

7. A joint comprising a pair of intersecting T-bars, said bars having slots extending from the top and bottom thereof, respectively, and adapted to permit said bars to be brought into intersecting relation with the bottoms of said flanges in the same plane, one of said webs having an integral lip extending over the other of said webs.

8. A joint comprising a pair of intersecting T-bars, said bars having slots extending from the top and bottom thereof, respectively, and adapted to permit said bars to be brought into intersecting relation with the bottoms of said flanges in the same plane, one of said flanges having an integral lip extending over the other of said webs, and one of said webs having an integral lip extending over the other of said webs.

EUGENE BOGER'I 

